Jury screening began Monday for the trial of an alleged serial killer charged with killing four women, including one whose body was dumped outside Fairfax.

Joseph Naso, 89, is being prosecuted in Marin Superior Court, which has sent out nearly 15,000 jury summons for the trial.

Naso, his legal adviser and the prosecution began reviewing juror questionnaires and hardship applications Monday as jurors waited in the courtroom hallway or in the jury services room at the Marin County Civic Center.

After the initial screening period, Naso and the prosecution are expected to start picking jurors on June 3. The trial itself is estimated to last from mid-June to mid-November, with no sessions on Thursdays and breaks on July 5 and July 15 to 26.

Naso is acting as his own lawyer, although he has limited assistance from an advisory counsel, Deputy Public Defender Pedro Oliveros.

Naso, a retired commercial photographer, is charged with murdering Roxene Roggasch, 18, who was dumped west of Fairfax in 1977; Carmen Colon, 22, found near Port Costa in 1978; Pamela Parsons, 38, found in Yuba County in 1993; and Tracy Tafoya, 31, found in Yuba County in 1994.

Naso was identified as the suspect after a 2010 probation search at his Reno home revealed a vast collection of photographs of dead or unconscious women in various states of undress, incriminating writings, sadistic magazines, and diaries describing sex crimes, investigators said. Authorities are still investigating whether he can be linked to additional homicides.

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Investigators said semen on Roggasch's pantyhose matched Naso's DNA profile, and that Roggasch was strangled with panty hose that contained the DNA of Naso's wife. He also had extensive photos of Parsons in his collection, and admitted he dated Tafoya.

Naso has said that the photos are his private artwork and that the women are in staged poses.